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Patented Jan. 10, 1928.

tlhiiTED id'iATES OFiFMJh GEORGE CLA'USING', OIF PQR-TSEFIGTOUXTE, OHIO, AfEiiEIGliii'C-fil TO THE VUILOAN Li'ifi'i. COTE" IPANY, Q1? PORTSMOUTl-I, ()IHZIQ, A COIHTOIMMHON i115 01711110.

LAST.

Application filed. April 22, 1925. Serial No. 524 991.

.hiy iHVBI'Xi iUH. relates to lasts and in par iieuiar to a snap hack last. IE it in the object oil? lily iHYUi'JiiUl]. to proi ride a .ssuap hack in, M It ii" ii a further oh ect ot my invention to provide a snap hack last in which the parts will he definitely and accurately located the snap back eprii'ig definitely positioned "ind inaintaiiied in position and in which the W p rts or links reti ining the last parts; toor may he easily aseemhled. in the minimum space.

it is a further object of my invention to provide a ili'uhie iinh construction aseoeiated. With a hinge pin which definitely ties the last parts together so that they will rock about the hinge pin. as a center.

h ter-ring to the drawings: li igzure l is a side elevation of a hint par tialh in section to ShOW the ar'angreuient oi the snap hack s nking and links; and.

ii i gure is a, plan View ot the link system with. the hinge pin and anchoring pine iii-(men away and with. the Spring in, sectionlinhz-i which have oioseiy :Hi iWi-liii] portions' L. 'i.].ie:- e links are hent at .125 ontwardl r mi one another uiuii they are siiit-ahiy paced so that there is on hetwcen their i'(% E.\\"li'(Iii. spaced portion: i: which are provided. with ewe at the rear ends thereoi For mounting on the :niehor' pin 15 in the heel part.

The forward ends of tlieee heel. whii-h ends are designated 12 are eu'iin'ioed on either side thereot hy the spaced too links 16 which are pivotally mounted on the hinge pin ll. at one end and mounted on the transverse toe anchor pin 17' at the other end. H

.ihatn-"een these epaeed iinlce n; is located the arched spring): 15-3. one end of which is provided with a hook if) nioniiteil on the anchor pin 17 and. low. ted hetrveen the toe links 16.

The other end. of this arched spring it; is provided with a siinihu' hook 20 mounted tione l-ioi: the heel iinhs.

Elli Referring to the drawiir e in detaih '5 is Thus the spring is maintained, in ihi Hilliihe too part oi the hint and. 2 IS the heel. ahle IQOHIiSIOH hy them iiiihie rrhiflh nerve to i '1. 1" i 1ro nre ilthlh ilhi and hohi int inneit he [i iii 5 off then] in n predeterniinod pox. and the heel part with a cut. away The toe part has; a eeiiii-eirruhir i ion. it will he noted that theceiiter of the pin 1. never rove; below a line drawn hetn'rrn slot 3 .'i dint i.

'ihe toe part is P orideii with a. rut. air

i i'iliit i'itStt out, iii-ra portion ii in whi h a. the centers oi the pins .15 and. I? so that nirtiaiiy iryiinih'iiiii shoulder trunevoreciy the spring nil which is Hl't'litlti. urnvnrdhg to disposed and projecting from the heel. part I clear the pin 11. will. aln ays tend. to snow 2 his. This ehouhier 15 designated (5. .ihe

l u a hack the parts into expiiilded position.

on the heel anchor pin 15 hotween the poo a r iower adjinent portions of the heel and toe part are provided with shoulders 7 and 8 whieh eii age with one another when the last is in upended position. Such shoulders; limit the expanding movement of the last parts. The upper adjacent .laeee oi" the laetparts are angularly disposed as at i) and 10 torinii'ig roughly a V-shaped rut away port-ion between them when the last in expanded position. This space permits oi? the last halves approaching each other in coihipsed position until the hit-0e D and 1.0 engage.

The transverse hiiige pin 11. is carried hy the projecting eirouhlr slmiihler (l and is m l rated suhetantiall in the center thereof.

It will he understood that I desire to co|nprehend within my invention. such changes and modifieations as may he necessary to adapt it to varying conditions of use.

I-laring thus fully described my invention, What I claim as new and desire to cure by Letters Patent, is

1. In a snap back lat, a toe part and a heel partadapted to rock upon one another ahout a given center, a pin passing through said center, links carried on and. pin, pins in the last parts supporting the tree ende oi? said links so arranged that a line drawn hetween the centers o't said last iiijintioiuj-d pine will never paes O'H'i the renter oi? th= tiret umutioned pin, and a hing uioont e on said loot menti u ed iiis arched over said first mentioned pin to yieldingly resist the collapsing movement of the last parts about the center of the first mentioned pin.

2. In a snap back last, last parts adapted to rock one on the other, two pairs of links connecting said parts, each pair of links extending into respective parts of said last, a yielding connecting member arranged so that its point of et'tnrhnient through the last parts will not pass by the whim oi movement of the last parts, \\l101'Ql) :2 line drawn between the centers of ntteelnnvm Will always be holow billd renter o! 1l1;\\-

xi nature. 

